Bookbinder



Aug. 30,1927. 1,640,850 E. W. QTTO BOOKBINDER Filed Aug 19 1926 INYENTOP:

119??? M rr Ol- .B M M I Patented Aug. 30, 1927.

EDGAR W. OTTO, LOS ANGELES, CALIFORNIA.

- BOOKBINDER. 7

Application filed August-19, 1926. Serial No. 130,263;

This invention relates to covers that can be used over insert-leaves of various kinds,

. to hold the leaves as in a book-cover bound in the regular manner.

One of the objects of this invention is to provide a binder or cover that can be manufactured separately in one shop in a condition ready to be used: and applied to insert leaves or any printed leaves produced or handled'in anysmall printer or'other shop, whether the leaves are nailed or sewed together, or otherwise made ready to be in serted into a-cover.

Another object is to provide a cover of a well finished type, commonly embodying blank folded leaves adjacent to eachof the inside surfaces of the cover, to be in front and after the last of the insertleaves, having a special glue strip securely applied to the back portion, that is the centermost flexible portion of the cover, this glue strip having a glue surface ready to be applied to theback and adjacent sideedges of insert-leaves, to form a book of a type similar to any well boundbook.

Other objects will appear from the following description and appended claims as well as from the accompanying drawing, in which Fig. 1 is an edge or end elevation of a finished book with a cover and glue strip embodying this invention.

Fig. 2 is a fragmentary perspective illustration, having a glue strip glued to the flexible back portion and to the adjacent edges of front and rear blank leaves, indicating also the glue surface of the strip by which the strip and thereby the whole cover may be secured to insert leaves by anyone even by a person not particularly versed in binding books.

The average printer, as a rule, does not perform any binding of books, and commonly, after a printer has'finished printing a book, it becomes necessary for him to send the printed leaves to a binder to be inserted into a cover in a proper manner.

Small town printers are quite commonly handicapped in this respect, since in order to satisfy exacting customers they commonly are compelled to send to a distant city to supply a proper binding for valued books.

This is not only expensive, but also requires time in which such printed matter is forwarded to the binder, and before it is returned. Transportation costs and double profit costs have often to be added to the price, charged a customer by a printer.

VVit-h a back or cover as disclosed in this application, a printer can have an assortment of well finished covers of this new type stored in a flat condition as approximately illustrated in Fig. 2 in his place ready to be applied to insert leaves in his own shop and by his own employees without any difliculs ties.

As illustrated in Fig. 2, the book-cover portions 3 and 4.- may be of well finished 7 stock, such as artificial or imitation leather, or embossed finishing or surfacing, or the like, to produce desirable appearance. The cover portions 3 and 4 are firmly intercons nected by the flexible back portion 5. Fold ed leaves are applied to the two cover portions 8 and l, to form the usual blank pages in a book. These folded leaves are in the usual manner each glued or firmly secured with one sheet to one of the cover portions,

as indicated at 6 and (i leavinga full-free leaf 7 and 7,, for the front and back of a finished book. These leaves are folded at a point to align with the adjacent edges of the cover portions, this being at the interconnection of the cover portions with the flexible back portion, asindicated at 8.

A glue strip 9 is firmly glued to the flexible back portion 5, as indicated at 10, and to the adjacent edges of the loose leaves 7 .and 7,, as indicated at 11, so that the whole one side of the glue strip is firmly secured to the cover. The opposite side of the glue strip is provided with glue by which the strip can be firmly applied to the back and adjacent edges of the sides of insert leaves, to result in a well bound book in a manner illustrated in Fig. 1. The free leaves 7 and 7 a may in the finished book be folded along the edges near the terminations of the glue strip, as indicated at 13, while the heavy covers may be folded and swung in relation to the insert-leaves along the edges close to the back edges of the insert-leaves, as indicated at 14. I

The binding of insert-leaves in a folder or cover of this kind is accomplished by a mere dampening of the inner surface 12 of the glue strip, preparatory to an insertion of the insert-leaves.

a cover of this kind to the back of insertleaves, since but a few seconds are sufficient for applying an insert to the glue and subsequent drying is rapid because of the small quantity of water used." Since an insignificant amount of dampness is used in binding a book in a manner set forth above, the insert-leaves will not have to absorb an undue amount of dampness, and it will therefore be clear that the drying time and the costs necessitated for machinery and drying purposes can be reduced to a great extent when binding a book in a manner described above.

- It must be understood that the folded leaves are not absolutely necessary and that it is a mere matter of costs which may be allowed for various brands of covers and that therefore the folded leaves may be left out in a cheaper brand of ready covers, in which case the strip is glued within the cover in a similar manner as set forth above, overlapping the edges of and being glued to the edges nearthe flexible back, but the principal featureof having the inner free side of the strip prepared with glue or other similar suitable means ready to receive in sert-leaves or a book, remains the same as explained in the more expensive brand illustrated in the drawing, fully within the scope of the appended claims.

Having thus described my invention, I claim: 7 a 1; A binder consisting of cover portions interconnected by acomparatively flexible back portion, and a glue-strip firmly secured with one of its flat sides within said binder over said back portion and having glue surfacing on its opposite side adapted to se-V leaves being each firmly secured with oneof their sheets to one of said cover-portions with their folding edges aligning with the interconnected edges of sand cover-portions so that the second sheet of such folding leaves remains free to fold upon the inside of the cover-portions and a glue-strip firmly secured with one side to said back-portion and l' t l f 'lfllll l to acjacen ec ges o saic o cec eaves anc having 1ts opposite side prepared with gluesurfacing adapted to securely bind insert leaves at their back and adjacent edges to said back-portion and adjacent edges of said fold ed leaves upon a dampening of the gluesurfacing when the binder with its attached folded leaves is so placed over such insertleaves. I i

In testimony that I claim the foregoing as my inventionI have signed my name.

EDGAR WV. OTTO 

